Finding the Fourth Proportional to 221,206.24, 305,271.76 and 124,426.88
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Solution
The fourth proportional to 221,206.24, 305,271.76 and 124,426.88 is: 171,713.12
Step by Step Solution
- Step 1: Write the proportion equation
221,206.24 : 305,271.76 = 124,426.88 : x - Step 2: Convert to fraction form
221,206.24/305,271.76 = 124,426.88/x - Step 3: Cross multiply
221,206.24x = 305,271.76 × 124,426.88 - Step 4: Simplify right side
221,206.24x = 37,984,012,648.91 - Step 5: Solve for x
x = 37,984,012,648.91/221,206.24 - Step 6: Final answer
x = 171,713.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.